Herbicidal composition

ABSTRACT

To provide a technology for controlling weeds and the like. A herbicidal composition comprising at least one compound selected from Group A, and 2,4-D choline salt has a weed control effect:
     Group A:   a group consisting of flumioxazin, sulfentrazone, saflufenacil, oxyfluorfen, fomesafen and a compound represented by the formula (I):

CROSS-REFERENCE TO RELATED APPLICATION

This application is a Divisional of application Ser. No. 15/371,679filed on Dec. 7, 2016, which is a Divisional of application Ser. No.14/471,794 (now U.S. Pat. No. 9,545,109) filed on Aug. 28, 2014, all ofwhich are hereby expressly incorporated by reference into the presentapplication.

BACKGROUND OF THE INVENTION Field of the Invention

The present invention relates to a weed control method.

Description of the Related Art

In order to control weeds, many compounds have been known as an activeingredient of a pest control agent such as a herbicide.

PRIOR ART LITERATURE Non-Patent Literature

Non-Patent Literature 1: Crop Protection Handbook, vol. 98 (2012)(Meister Publishing Company, ISBN: 1-892829-25-8)

SUMMARY OF THE INVENTION

An object of the present invention is to provide a herbicidalcomposition having a high control effect on weeds.

The present inventor has found that a specific combination of herbicideshas a high control effect on weeds, and the present invention has beencompleted.

The present invention is as described below.

[1] A herbicidal composition comprising at least one compound selectedfrom Group A, and 2,4-D choline salt, wherein Group A is a groupconsisting of flumioxazin, sulfentrazone, saflufenacil, oxyfluorfen,fomesafen and a compound represented by the formula (I):

[2] The herbicidal composition according to [1], wherein the weightratio of the at least one compound selected from Group A to 2,4-Dcholine salt is from 1:0.2 to 1:200.

[3] The herbicidal composition according to [1], wherein the weightratio of the at least one compound selected from Group A to 2,4-Dcholine salt is from 1:0.5 to 1:100.

[4] The herbicidal composition according to [1], which further comprisesglyphosate or a salt thereof.

[5] The herbicidal composition according to [4], wherein the weightratio of the at least one compound selected from Group A to glyphosateor a salt thereof is from 1:0.2 to 1:200 in terms of the weight ofglyphosate.

[6] The herbicidal composition according to [4], wherein the weightratio of 2,4-D choline salt to glyphosate or a salt thereof is from1:0.05 to 1:20 in terms of the weight of glyphosate.

[7] The herbicidal composition according to any one of [1] to [3],wherein the at least one compound selected from Group A is flumioxazin.

[8] The herbicidal composition according to any one of [4] to [6],wherein the at least one compound selected from Group A is flumioxazin.

[9] A method for controlling weeds, comprising applying at least onecompound selected from Group A and 2,4-D choline salt to weeds or soilin a place where the weeds grow or will grow, wherein Group A is a groupconsisting of flumioxazin, sulfentrazone, saflufenacil, oxyfluorfen,fomesafen and a compound represented by the formula (I):

[10] The method according to [9], wherein the weight ratio of the atleast one compound selected from Group A to 2,4-D choline salt is from1:0.2 to 1:200.

[11] The method according to [9], wherein the weight ratio of the atleast one compound selected from Group A to 2,4-D choline salt is from1:0.5 to 1:100.

[12] The method according to [9], applying the at least one compoundselected from Group A, 2,4-D choline salt and glyphosate or a saltthereof.

[13] The method according to [12], wherein the weight ratio of the atleast one compound selected from Group A to glyphosate or a salt thereofis from 1:0.2 to 1:200 in terms of the weight of glyphosate.

[14] The method according to [12], wherein the weight ratio of 2,4-Dcholine salt to glyphosate or a salt thereof is in a range of from1:0.05 to 1:20 in terms of the weight of glyphosate.

[15] The method according to any one of [9] to [14], wherein the placewhere the weeds grow or will grow is a soybean field, a cotton field, ora corn field.

[16] The method according to [15], wherein a soybean in the soybeanfield, cotton in the cotton field or corn in the corn field is agenetically-modified soybean, genetically-modified cotton orgenetically-modified corn.

[17] The method according to [15], wherein a soybean in the soybeanfield, cotton in the cotton field or corn in the corn field is aherbicide-resistant genetically-modified soybean, herbicide-resistantgenetically-modified cotton or herbicide-resistant genetically-modifiedcorn.

[18] The method according to [15], wherein a soybean in the soybeanfield or cotton in the cotton field is a 2,4-D-resistantgenetically-modified soybean or 2,4-D-resistant genetically-modifiedcotton.

[19] The method according to any one of [9] to [11], wherein the atleast one compound selected from Group A is flumioxazin.

[20] The method according to any one of [12] to [18], wherein the atleast one compound selected from Group A is flumioxazin.

According to the present invention, it is possible to control weeds witha high effect.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

A herbicidal composition of the present invention (hereinafter, referredto as the composition of the present invention) comprises at least onecompound selected from. Group A, and 2,4-D choline salt:

Group A;

a group consisting of flumioxazin, sulfentrazone, saflufenacil,oxyfluorfen, fomesafen and a compound represented by the formula (I):

The composition of the present invention comprises at least one compoundselected from Group A as a first component:Group A;a group consisting of flumioxazin, sulfentrazone, saflufenacil,oxyfluorfen, fomesafen and a compound represented by the formula (I)(hereafter described as Compound 1):

Flumioxazin, sulfentrazone, saflufenacil, oxyfluorfen, and fomesafen arewell known herbicidal active compounds and described in Crop ProtectionHandbook, vol. 98 (2012) (Meister Publishing Company, ISBN:1-892829-25-8), and can be produced by the known processes, andcommercially available preparations containing them can be obtained.

Fomesafen used in the present invention may be a salt such asfomesafen-sodium.

Compound 1 is a herbicidal active compound described in WO 10/145992 andcan be produced by a method described in this publication.

The composition of the present invention comprises 2,4-D choline salt asa second component.

2,4-D choline salt is a herbicide described in WO 08/106107 and can beproduced by a method described in this publication. In the case ofreferring to 2,4-D in the present invention, the 2,4-D refers to a formof an acid of 2,4-D.

The composition of the present invention may also comprise glyphosate ora salt thereof as a third component.

Glyphosate or a salt thereof used in the present invention may be eitherin a form of an acid of glyphosate, or a form of a salt of glyphosate,and a form of a salt of glyphosate is usually used.

Specific examples of the salt of glyphosate include glyphosateisopropylamine salt, glyphosate-trimethylsulfonium, glyphosate-ammonium,glyphosate-diammonium, glyphosate-sodium, glyphosate-potassium,glyphosate guanidine derivative salts, glyphosate choline salt andglyphosate N,N-Bis(3-aminopropyl)methylamine salt. These salts ofglyphosate are described in Crop Protection Handbook, vol. 98 (2012)(Meister Publishing Company, ISBN: 1-892829-25-8), Compendium ofPesticide Common Names (http://www.alanwood.net/pesticides/), U.S. Pat.No. 3,799,758, WO 08/106107, WO 11/008453 and WO 11/039172, and they canbe produced by a known production method.

In the case of referring to glyphosate in the present invention, theglyphosate refers to a form of an acid of glyphosate.

The composition of the present invention has herbicidal activity againsta wide variety of weeds, and thus enabling effective control of a widevariety of weeds in the fields where crops are usually cultivated withor without tillage, vegetable field, tree land or non-cultivated land.

Examples of the farm crop field in the present invention include fieldsof edible crops such as peanut, soybean, corn, wheat and barley; feedcrops such as sorghum and oat; industrial crops such as cotton; andsugar crops such as sugarcane. Examples of the vegetable field in thepresent invention include fields of Solanaceae vegetables such aseggplant, tomato, green pepper, red pepper and potato; Cucurbitaceaevegetables such as cucumber, pumpkin, zucchini, watermelon and melon;Brassicaceae vegetables such as radish, turnip, horseradish, cohlrabi,Chinese cabbage, cabbage, leaf mustard, broccoli and cauliflower;Compositae vegetables such as burdock, crown daisy, artichoke andlettuce; Liliaceae vegetables such as leek, onion, garlic and asparagus;Umbelliferae vegetables such as carrot, parsley, celery and parsnip;Chenopodiaceae vegetables such as spinach and Swiss chard; Lamiaceavegetables such as perilla, mint, basil and lavender; strawberry; sweetpotato; yam; and taro.

Examples of the tree land in the present invention include orchards, teaplantation, mulberry field, coffee plantation, banana plantation, palmplantation, flower tree land, flower field, nursery tree land, youngplant land, forest and garden. Examples of the orchard include pomefruits such as apple, pear, Japanese pear, Chinese quince and quince;stone fruits such as peach, plum, nectarine, Japanese apricot, cherry,apricot and prune; citrus such as Satsuma orange, orange, lemon, limeand grapefruit; tree nuts such as chestnut, walnut, hazelnut, almondnut, pistachio nut, cashew nut and macadamia nut; berries such asblueberry, cranberry, blackberry and raspberry; grape; persimmon; olive;and loquat.

Examples of the non-cultivated land in the present invention includeplayground, vacant land, neighborhood of railroad, park, car park,neighborhood of road, dry riverbed, land under power-transmission lines,land for housing and site for factor.

Crops cultivated in the farm crop field in the present invention are notlimited as long as they belong to cultivars which are generallycultivated as crops.

These plant cultivars include plants, to which resistance to herbicideshas been imparted by a classical breeding method or geneticrecombination technology, the herbicides being protoporphyrinogenoxidase inhibitors such as flumioxazin; 4-hydroxyphenylpyruvatedioxygenase inhibitors such as isoxaflutole; acetolactate synthaseinhibitors such as imazethapyr and thifensulfuron-methyl; acetyl CoAcarboxylase inhibitors such as sethoxydim;5-enolpyruvylshikimate-3-phosphate synthase inhibitors such asglyphosate; glutamine synthetase inhibitors such as glufosinate; auxintype herbicides such as 2,4-D and dicamba; and bromoxynil.

Examples of the crop, to which resistance to herbicides has beenimparted by a classical breeding method, include corn which is resistantto an imidazolinone type acetolactate synthase inhibiting herbicide suchas imazethapyr, and which has already been sold under the trade name ofClearfield (registered trademark). Such a crop also includes STS soybeanwhich is resistant to a sulfonylurea type acetolactate synthaseinhibiting herbicide such as thifensulfuron-methyl. Similarly, examplesof the plant, to which resistance to an acetyl CoA carboxylase inhibitorsuch as a trione oxime or aryloxyphenoxypropionic acid type herbicidehas been imparted by a classical breeding method, include SR corn.

Examples of the plant, to which resistance to herbicides has beenimparted by genetic recombination technology, include corn, soybean andcotton, each having resistance to glyphosate, and which have alreadybeen sold under the trade names of RoundupReady (registered trademark),Agrisure (registered trademark) GT, and Gly-Tol (registered trademark).Similarly, plants, to which resistance to herbicides has been impartedby genetic recombination technology, include corn, soybean and cotton,each having resistance to glufosinate, and they have already been soldunder the trade name of LibertyLink (registered trademark). There arecorn and soybean cultivars, which are resistant to both glyphosate andALS inhibitors, and are sold under the trade name of Optimum (registeredtrademark) GAT (registered trademark). Similarly, there is soybean, towhich resistance to an imidazolinone type acetolactate synthaseinhibitor has been imparted by genetic recombination technology, andwhich has been developed under the trade name of Cultivance. Similarly,there is cotton, to which resistance to bromoxynil has been imparted bygenetic recombination technology, and which has already been sold underthe trade name of BXN (registered trademark). There is soybean, which isresistant to both glyphosate and dicamba, and has been developed underthe brand of RoundupReady (registered trademark) 2 Xtend. Similarlythere is cotton, which resistant to both glyphosate and dicamba.

Crops having resistance to both phenoxy acid type herbicides such as2,4-D, MCPA, dichlorprop and mecoprop, and aryloxyphenoxypropionic acidtype herbicides such as quizalofop, haloxyfop, fluazifop, diclofop,fenoxaprop, metamifop, cyhalofop and clodinafop can be fabricated byintroducing a gene encoding an aryloxyalkanoate dioxygenase (Wright etal. 2010: Proceedings of National Academy of Science. 107(47):20240-20245). Cultivars of soybean and cotton, which show the resistanceto 2,4-D, have been developed under the brand of Enlist.

By introducing a gene encoding a 4-hydroxyphenylpyruvate dioxygenase(hereinafter referred to as HPPD) inhibitor which exhibits resistance toHPPD inhibitor, and thus plants having resistance to the HPPD inhibitorcan be fabricated (US 2004/0058427). By introducing a gene capable ofsynthesizing homogentisic acid as a product of HPPD through anothermetabolic pathway, homogentisic acid is produced even in the presence ofa HPPD inhibitor, and thus making it possible to fabricate plants whichexhibits resistance to the HPPD inhibitor (WO 02/036787). By introducinga gene capable of excessively expressing HPPD, HPPD is produced in theamount which does not exert an adverse influence on the growth of theplant even in the presence of a HPPD inhibitor, and thus making itpossible to fabricate plants which exhibit resistance to the HPPDinhibitor (WO 96/38567). By introducing aforementioned gene capable ofexcessively expressing HPPD and also introducing a gene encoding aprephenate dehydrogenase so as to increase the production amount ofp-hydroxyphenylpyruvic acid as a substrate of HPPD, and thus making itpossible to fabricate plants which exhibit resistance to the HPPDinhibitor (Rippert P et al. 2004 Engineering plant shikimate pathway forproduction of tocotrienol and improving herbicide resistance. PlantPhysiol. 134: 92-100).

Examples of the other method of imparting resistance to a herbicideinclude methods of introducing genes described in WO 98/20144, WO02/46387 and US 2005/0246800.

Aforementioned crops also include crops which made it possible tosynthesize selective toxins known as the genus Bacillus, using geneticrecombination technology.

Examples of toxins expressed in these transgenic plants includeinsecticidal proteins derived from Bacillus cereus and Bacilluspopilliae; δ-endotoxins derived from Bacillus thuringiensis, e.g.Cry1Ab, Cry1Ac, Cry1F, Cry1Fa2, Cry2Ab, Cry3A, Cry3Bb1 and Cry9C,Cry34ab and Cry35ab, and insecticidal proteins such as VIP1, VIP2, VIP3and VIP3A; insecticidal toxins derived from nematodes; insecticidaltoxins produced by animals, such as scorpion toxin, spider toxin, beetoxin and insect-specific neurotoxins; filamentous fungi toxins; plantlectins; agglutinin; protease inhibitor such as trypsin inhibitor,serine protease inhibitor, patatin, cystatin and papain inhibitor;ribosome-inactivating proteins (RIP) such as ricin, corn-RIP, abrin,rufin, sapolin and priodin; steroid metabolic enzymes such as3-hydroxysteroid oxidase, ecdysteroid-UDP-glucosyltransferase andcholesterol oxidase; ecdysone inhibitor; HMG-CoA reductase; ion channelinhibitors such as sodium channel inhibitor and calcium channelinhibitor; juvenile hormone esterase; diuretic hormone acceptors;stilbene synthetase; bibenzyl synthetase; chitinase; and glucanase.

The toxins expressed in these transgenic plants include hybrid toxins,partially deficient toxins and modified toxins, which derive fromδ-endotoxin proteins such as Cry1Ab, Cry1Ac, Cry1F, Cry1Fa2, Cry2Ab,Cry3A, Cry3Bb1, Cry9C, Cry34Ab and Cry35Ab, and insecticidal proteinssuch as VIP1, VIP2, VIP3 and VIP3A. The hybrid toxins are fabricated bya novel combination of the different domains of these proteins, usinggenetic recombination technology. The known partially deficient toxin isCry1Ab, in which a part of amino acid sequence is deficient. In modifiedtoxins, one or more amino acids of a natural toxin are replaced.Examples of these toxins and transgenic plants capable of synthesizingthese toxins are described in EP-A-0 374 753, WO 93/07278, WO 95/34656,EP-A-0 427 529, EP-A-451 878, and WO 03/052073. The toxins contained inthese transgenic plants impart resistance to insect pests of Coleoptera,insect pests of Diptera and insect pests of Lepidoptera to the plants.

There have already been known transgenic plants having one or moreinsecticidal pest-resistant genes and capable of producing one or moretoxins, and some of them are commercially available. Examples of thetransgenic plants include YieldGard (registered trademark) (a cornvariety expressing Cry1Ab toxin), YieldGard Rootworm (registeredtrademark) (a corn variety expressing Cry3Bb1 toxin), YieldGard Plus(registered trademark) (a corn variety expressing Cry1Ab and Cry3Bb1toxins), Herculex I (registered trademark) (a corn variety expressingCry1Fa2 toxin and phosphinothricin N-acetyltransferase (PAT) to impartresistance to glufosinate), NatureGard (registered trademark), AGRISURE(registered trademark) CB Advantage (Bt11 corn borer (CB) character),and Protecta (registered trademark).

There have already been known transgenic cottons having one or moreinsecticidal pest-resistant genes and capable of producing one or moretoxins, and some of them are commercially available. Examples of thetransgenic cottons include BollGard (registered trademark) (cottoncultivar expressing a Cry1Ac toxin), BollGard (registered trademark) II(cotton cultivar expressing Cry1Ac and Cry2Ab toxins), BollGard(registered trademark) III (cotton cultivar expressing Cry1Ac, Cry2Aband VIP3A toxins), VipCot (registered trademark) (cotton cultivarexpressing a VIP3A and Cry1Ab toxins) and WideStrike (registeredtrademark) (cotton cultivar expressing Cry1Ac and Cry1F toxins).

Examples of the plant used in the present invention include plantsimparted with resistance to aphids, such as soybean having a Rag1(Resistance Aphid Gene1) gene introduced thereinto.

The above crops also include those imparted with a capacity of producingan anti-pathogenic substance having selective activity. As theanti-pathogenic substance, PR proteins (PRPs, EP-A-0 392 225) are known.These anti-pathogenic substances and transgenic plants producing thereofare described in EP-A-0 392225, WO 95/33818, and EP-A-0 353 191.Examples of the anti-pathogenic substance expressed by the transgenicplants include ion channel inhibitors such as a sodium channel inhibitorand calcium channel inhibitor (KP1, KP4 and KP6 toxins produced byviruses are known); stilbene synthases; bibenzyl synthases; chitinase;glucanase; PR proteins; and substances produced by microorganisms, suchas peptide antibiotics, antibiotics having a heterocyclic ring andprotein factors (called genes resistant to plant diseases and aredescribed in WO 03/000906) involved in plant disease resistance.

The above crops include those imparted with useful traits, such asreformed oil component and enhanced amino acid content, by means of agenetic recombination technique. The crops are exemplified by VISTIVE(registered trademark) (low linolenic soybean with reduced linolenicacid content) and high-lysine (high-oil) corn (corn with increasedlysine or oil content).

The crops further include stacked varieties, which are fabricated bycombining the above classical herbicidal traits or herbicide resistantgenes, insecticidal pest resistant genes, anti-pathogenicsubstance-producing genes, reformed oil component and enhanced aminoacid content.

The above-mentioned crops include those imparted with tolerance todiseases, tolerance to dehydration stresses, traits to increase sugarcontent, and so on.

The composition of the present invention can control weeds effectivelyin, especially, soybean fields, cotton fields, and corn fields.

Examples of weeds capable of controlling the composition of the presentinvention include the followings:

Urticaceae weeds: Urtica urens

Polygonaceae weeds: Polygonum convolvulus, Polygonum lapathifolium,Polygonum pensylvanicum, Polygonum persicaria, Polygonum longisetum,Polygonum aviculare, Polygonum arenastrum, Polygonum cuspidatum, Rumexjaponicus, Rumex crispus, Rumex obtusifolius, Rumex acetosa

Portulacaceae weeds: Portulaca oleracea

Caryophyllaceae weeds: Stellaria media, Cerastium holosteoides,Cerastium glomeratum, Spergula arvensis, Silene gallica

Aizoaceae weeds: Mollugo verticillata

Chenopodiaceae weeds: Chenopodium album, Chenopodium ambrosioides,Kochia scoparia, Salsola kali, Atriplex spp.

Amaranthaceae weeds: Amaranthus retroflexus, Amaranthus viridis,Amaranthus lividus, Amaranthus spinosus, Amaranthus hybridus, Amaranthuspalmeri, Amaranthus rudis, Amaranthus patulus, Amaranthus tuberculatos,Amaranthus blitoides, Amaranthus deflexus, Amaranthus quitensis,Alternanthera philoxeroides, Alternanthera sessilis, Alternantheratenella

Papaveraceae weeds: Papaver rhoeas, Argemone mexicana

Brassicaceae weeds: Raphanus raphanistrum, Raphanus sativus, Sinapisarvensis, Capsella bursa-pastoris, Brassica juncea, Brassica campestris,Descurainia pinnata, Rorippa islandica, Rorippa sylvestris, Thlaspiarvense, Myagrum rugosum, Lepidium virginicum, Coronopus didymus

Capparaceae weeds: Cleome affinis

Fabaceae weeds: Aeschynomene indica, Aeschynomene rudis, Sesbaniaexaltata, Cassia obtusifolia, Cassia occidentalis, Desmodium tortuosum,Desmodium adscendens, Trifolium repens, Pueraria lobata, Viciaangustifolia, Indigofera hirsuta, Indigofera truxillensis, Vignasinensis

Oxalidaceae weeds: Oxalis corniculata, Oxalis strica, Oxalis oxyptera

Geraniaceae weeds: Geranium carolinense, Erodium cicutarium

Euphorbiaceae weeds: Euphorbia helioscopia, Euphorbia maculata,Euphorbia humistrata, Euphorbia esula, Euphorbia heterophylla, Euphorbiabrasiliensis, Acalypha australis, Croton glandulosus, Croton lobatus,Phyllanthus corcovadensis, Ricinus communis

Malvaceae weeds: Abutilon theophrasti, Sida rhombiforia, Sidacordifolia, Sida spinosa, Sida glaziovii, Sida santaremnensis, Hibiscustrionum, Anoda cristata, Malvastrum coromandelianum

Sterculiaceae weeds: Waltheria indica

Violaceae weeds: Viola arvensis, Viola tricolor

Cucurbitaceae weeds: Sicyos angulatus, Echinocystis lobata, Momordicacharantia

Lythraceae weeds: Lythrum salicaria

Apiaceae weeds: Hydrocotyle sibthorpioides

Sapindaceae weeds: Cardiospermum halicacabum

Primulaceae weeds: Anagallis arvensis

Asclepiadaceae weeds: Asclepias syriaca, Ampelamus albidus

Rubiaceae weeds: Galium aparine, Galium spurium var. echinospermon,Spermacoce latifolia, Richardia brasiliensis, Borreria alata

Convolvulaceae weeds: Ipomoea nil, Ipomoea hederacea, Ipomoea purpurea,Ipomoea hederacea var. integriuscula, Ipomoea lacunosa, Ipomoea triloba,Ipomoea acuminata, Ipomoea hederifolia, Ipomoea coccinea, Ipomoeaquamoclit, Ipomoea grandifolia, Ipomoea aristolochiafolia, Ipomoeacairica, Convolvulus arvensis, Calystegia hederacea, Calystegiajaponica, Merremia hedeacea, Merremia aegyptia, Merremia cissoides,Jacquemontia tamnifolia

Boraginaceae weeds: Myosotis arvensis

Lamiaceae weeds: Lamium purpureum, Lamium amplexicaule, Leonotisnepetaefolia, Hyptis suaveolens, Hyptis lophanta, Leonurus sibiricus,Stachys arvensis

Solanaceae weeds: Datura stramonium, Solanum nigrum, Solanum americanum,Solanum ptycanthum, Solanum sarrachoides, Solanum rostratum, Solanumaculeatissimum, Solanum sisymbriifolium, Solanum carolinense, Physalisangulata, Physalis subglabrata, Nicandra physaloides

Scrophulariaceae weeds: Veronica hederaefolia, Veronica persica,Veronica arvensis

Plantaginaceae weeds: Plantago asiatica

Asteraceae weeds: Xanthium pensylvanicum, Xanthium occidentale,Helianthus annuus, Matricaria chamomilla, Matricaria perforata,Chrysanthemum segetum, Matricaria matricarioides, Artemisia princeps,Artemisia vulgaris, Artemisia verlotorum, Solidago altissima, Taraxacumofficinale, Galinsoga ciliata, Galinsoga parviflora, Senecio vulgaris,Senecio brasiliensis, Senecio grisebachii, Conyza bonariensis, Conyzacanadensis, Ambrosia artemisiaefolia, Ambrosia trifida, Bidens pilosa,Bidens frondosa, Bidens subalternans, Cirsium arvense, Cirsium vulgare,Silybum marianum, Carduus nutans, Lactuca serriola, Sonchus oleraceus,Sonchus asper, Wedelia glauca, Melampodium perfoliatum, Emiliasonchifolia, Tagetes minuta, Blainvillea latifolia, Tridax procumbens,Porophyllum ruderale, Acanthospermum australe, Acanthospermum hispidum,Cardiospermum halicacabum, Ageratum conyzoides, Eupatorium perfoliatum,Eclipta alba, Erechtites hieracifolia, Gamochaeta spicata, Gnaphaliumspicatum, Jaegeria hirta, Parthenium hysterophorus, Siegesbeckiaorientalis, Soliva sessilis

Liliaceae weeds: Allium canadense, Allium vineale

Commelinaceae weeds: Commelina communis, Commelina bengharensis,Commelina erecta

Poaceae weeds: Echinochloa crus-galli, Setaria viridis, Setaria faberi,Setaria glauca, Setaria geniculata, Digitaria ciliaris, Digitariasanguinalis, Digitaria horizontalis, Digitaria insularis, Eleusineindica, Poa annua, Alospecurus aequalis, Alopecurus myosuroides, Avenafatua, Sorghum halepense, Sorghum vulgare, Agropyron repens, Loliummultiflorum, Lolium perenne, Lolium rigidum, Bromus secalinus, Bromustectorum, Hordeum jubatum, Aegilops cylindrica, Phalaris arundinacea,Phalaris minor, Apera spica-venti, Panicum dichotomiflorum, Panicumtexanum, Panicum maximum, Brachiaria platyphylla, Brachiariaruziziensis, Brachiaria plantaginea, Brachiaria decumbens, Brachiariabrizantha, Brachiaria humidicola, Cenchrus echinatus, Cenchruspauciflorus, Eriochloa villosa, Pennisetum setosum, Chloris gayana,Eragrostis pilosa, Rhynchelitrum repens, Dactyloctenium aegyptium,Ischaemum rugosum, Oryza sativa, Paspalum notatum, Paspalummaritimum,Pennisetum clandestinum, Pennisetum setosum, Rottboellia cochinchinensis

Cyperaceae weeds: Cyperus microiria, Cyperus iria, Cyperus odoratus,Cyperus rotundus, Cyperus esculentus, Kyllinga gracillima

Equisetaceae weeds: Equisetum arvense, Equisetum palustre.

In the composition of the at least one compound selected from Group A,and 2,4-D choline salt in the present invention, the weight ratio of theat least one compound selected from Group A to 2,4-D choline salt isusually from 1:0.01 to 1:600, preferably from 1:0.2 to 1:200, morepreferably from 1:0.5 to 1:100, and still more preferably 1:2.5 to 1:80.

In the composition of the at least one compound selected from Group A,2,4-D choline salt and glyphosate or a salt thereof in the presentinvention, the weight ratio of the at least one compound selected fromGroup A to glyphosate or a salt thereof is usually from 1:0.01 to 1:600,preferably from 1:0.2 to 1:200, and more preferably from 1:0.5 to 1:100,in terms of the weight of glyphosate.

In the composition of the at least one compound selected from Group A,2,4-D choline salt and glyphosate or a salt thereof in the presentinvention, the weight ratio of 2,4-D choline salt to glyphosate or asalt thereof is usually from 1:0.001 to 1:100, preferably from 1:0.05 to1:20, in terms of the weight of glyphosate.

In the composition of the at least one compound selected from Group A,2,4-D choline salt and glyphosate or a salt thereof in the presentinvention, the weight ratio of the at least one compound from Group A:2,4-D choline salt:glyphosate or a salt thereof is preferably1:0.2-200:0.2-200, in terms of the weight of glyphosate.

Usually, the composition of the present invention is formulated toemulsifiable concentrates, wettable powders, suspensible concentrates,granules, and so on by being mixed with a solid carrier, a liquidcarrier, or the like, and optionally with surfactants and otherauxiliaries for formulation. These formulations generally contain 0.1 to90% by weight, preferably about 1 to about 80% by weight of the totalamount of the at least one compound selected from Group A, and 2,4-Dcholine salt.

Also when the composition of the present invention further comprisesglyphosate or a salt thereof, these formulations generally contain 0.1to 90% by weight, preferably about 1 to about 80% by weight of the totalamount of the at the least one compound selected from Group A, 2,4-Dcholine salt and glyphosate or a salt thereof.

Examples of the solid carrier used for formulating the composition ofthe present invention include fine powders and granules of clays such askaolinite, diatomaceous earth, synthetic hydrated silica, Fubasami clay,bentonite and acid clay; talc; other inorganic minerals such assericite, quartz powder, sulfur powder, activated carbon and calciumcarbonate; and chemical fertilizer such as ammonium sulfate, ammoniumphosphate, ammonium nitrate, ammonium chloride and urea. Examples of theliquid carrier include water; alcohols such as methanol and ethanol;ketones such as acetone, methyl ethyl ketone and cyclohexanone; aromatichydrocarbons such as toluene, xylene, ethylbenzene andmethylnaphthalene; non-aromatic hydrocarbons such as hexane, cyclohexaneand kerosene; esters such as ethyl acetate and butyl acetate; nitrilessuch as acetonitrile and isobutyronitrile; ethers such as dioxane anddiisopropyl ether; acid amides such as dimethylformamide anddimethylacetamide; and halogenated hydrocarbons such as dichloroethaneand trichloroethylene.

Examples of the surfactant used for formulating the composition of thepresent invention include alkyl sulfate esters, alkylsulfonate salts,alkylarylsulfonate salts, alkylaryl ethers, polyoxyethylene alkylarylethers, polyethylene glycol ethers, polyhydric alcohol esters and sugaralcohol derivatives. Examples of the other auxiliary for formulationinclude sticking agents and dispersants, such as casein; gelatin;polysaccharides such as starch, gum arabic, cellulose derivatives andalginic acid; lignin derivatives; bentonite; and synthetic water-solublepolymers such as polyvinyl alcohol, polyvinylpyrrolidone and polyacrylicacid; and stabilizers such as PAP (isopropyl acid phosphate), BHT(2,6-tert-butyl-4-methylphenol), BHA (2-/3-tert-butyl-4-methoxyphenol),vegetable oil, mineral oil, fatty acid and fatty acid ester.

The composition of the present invention can also be prepared byformulating each of the active ingredients by the above-describedprocedure, and then mixing the resulting formulations.

The formulated composition of the present invention can be applied as itis to a soil or a plant or alternatively may be applied to a soil or aplant after being diluted with water or the like. Moreover, thecomposition of the present invention may be used for increasingherbicidal activities by being used in admixture with another herbicide.Furthermore, the composition of the present invention can be usedtogether with insecticides, fungicides, plant growth regulators,fertilizers, soil-improving agents, and so on.

Examples of herbicides with which the composition of the presentinvention may be mixed include the following.

2,4-DB, 2,4-DB-dimethylammonium, 2,4-DB-isooctyl, 2,4-DB-butyl,2,4-DB-sodium, 2,4-DB-potassium, 2,4-DB choline salt, 2,4-DB-N,N-bis-(3-aminopropyl)methylamine salt, MCPA, MCPA-dimethylammonium,MCPA-2-ethylhexyl, MCPA-isooctyl, MCPA-butotyl, MCPA-butyl, MCPAdiolamine salt, MCPA-ethyl, MCPA-isobutyl, MCPA-isopropyl, MCPA-methyl,MCPA olamine salt, MCPA-sodium, MCPA trolamine salt, MCPA choline salt,MCPA N, N-bis-(3-aminopropyl)methylamine salt, MCPB, MCPB-ethyl,MCPB-methyl, MCPB-sodium, MCPB choline salt, MCPB N,N-bis-(3-aminopropyl)methylamine salt, mecoprop,mecoprop-dimethylammonium, mecoprop diolamine salt, mecoprop-ethadyl,mecoprop-2-ethylhexyl, mecoprop-isooctyl, mecoprop-methyl,mecoprop-potassium, mecoprop-sodium, mecoprop trolamine salt, mecopropcholine salt, mecoprop-P, mecoprop-P-dimethylammonium,mecoprop-P-2-ethylhexyl, mecoprop-P-isobutyl, mecoprop-P-potassium,mecoprop-P choline salt, mecoprop N, N-bis-(3-aminopropyl)methylaminesalt, dichlorprop, dichlorprop-butotyl, dichlorprop-dimethylammonium,dichlorprop-ethylammonium, dichlorprop-2-ethylhexyl,dichlorprop-isooctyl, dichlorprop-methyl, dichlorprop-potassium,dichlorprop-sodium, dichlorprop choline salt, dichlorprop N,N-bis-(3-aminopropyl)methylamine salt, dichlorprop-P,dichlorprop-P-dimethylammonium, dichlorprop-P-2-ethylhexyl,dichlorprop-P choline salt, dichlorprop-P N,N-bis-(3-aminopropyl)methylamine salt, dicamba, dicamba diglycolaminesalt, dicamba-dimethylammonium, dicamba diolamine salt,dicamba-isopropylammonium, dicamba-methyl, dicamba olamine salt,dicamba-potassium, dicamba-sodium, dicamba trolamine salt, dicambacholine salt, dicamba N, N-bis-(3-aminopropyl)methylamine salt,bromoxynil, bromoxynil-octanoate, dichlobenil, ioxynil,ioxynil-octanoate, di-allate, butylate, tri-allate, phenmedipham,chlorpropham, asulam, phenisopham, benthiocarb, molinate, esprocarb,pyributicarb, prosulfocarb, orbencarb, EPIC, dimepiperate, swep,propachlor, metazachlor, alachlor, acetochlor, metolachlor,S-metolachlor, butachlor, pretilachlor, thenylchlor,aminocyclopyrachlor, aminocyclopyrachlor-methyl,aminocyclopyrachlor-potassium, trifluralin, pendimethalin,ethalfluralin, benfluralin, prodiamine, simazine, atrazine, propazine,cyanazine, ametryn, simetryn, dimethametryn, prometryn, indaziflam,triaziflam, metribuzin, hexazinone, isoxaben, diflufenican, diuron,linuron, fluometuron, difenoxuron, methyldymron, isoproturon, isouron,tebuthiuron, benzthiazuron, methabenzthiazuron, propanil, mefenacet,clomeprop, naproanilide, bromobutide, daimuron, cumyluron, etobenzanid,bentazon, tridiphane, indanofan, amitrole, fenchlorazole, clomazone,maleic hydrazide, pyridate, chloridazon, norflurazon, bromacil,terbacil, oxaziclomefone, cinmethylin, benfuresate, cafenstrole,carfentrazone-ethyl, flumiclorac-pentyl, pyrithiobac,pyrithiobac-sodium, pyriminobac, pyriminobac-methyl, bispyribac,bispyribac-sodium, pyribenzoxim, pyrimisulfan, pyriftalid, triafamone,fentrazamide, dimethenamid, dimethenamid-P, ACN, benzobicyclon,dithiopyr, triclopyr, triclopyr-butotyl, triclopyr-ethyl,triclopyr-triethylammonium, thiazopyr, fluroxypyr, fluroxypyr-meptyl,aminopyralid, aminopyralid-potassium,aminopyralid-tris(2-hydroxypropyl)ammonium), aminopyralid-choline,clopyralid, clopyralid-methyl, clopyralid-olamine, clopyralid-potassium,clopyralid-tris(2-hydroxypropyl)ammonium, clopyralid-choline, dalapon,chlorthiamid, amidosulfuron, azimsulfuron, bensulfuron,bensulfuron-methyl, chlorimuron, chlorimuron-ethyl, cyclosulfamuron,ethoxysulfuron, flazasulfuron, flucetosulfuron, flupyrsulfuron,flupyrsulfuron-methyl-sodium, foramsulfuron, halosulfuron,halosulfuron-methyl, imazosulfuron, mesosulfuron, mesosulfuron-methyl,nicosulfuron, orthosulfamuron, oxasulfuron, primisulfuron,primisulfuron-methyl, propyrisulfuron, pyrazosulfuron,pyrazosulfuron-ethyl, rimsulfuron, sulfometuron, sulfometuron-methyl,sulfosulfuron, trifloxysulfuron, chlorsulfuron, cinosulfuron,ethametsulfuron, ethametsulfuron-methyl, iodosulfuron,iodosulfuron-methyl-sodium, metsulfuron, metsulfuron-methyl,prosulfuron, thifensulfuron, thifensulfuron-methyl, triasulfuron,tribenuron, tribenuron-methyl, triflusulfuron, triflusulfuron-methyl,tritosulfuron, picolinafen, beflubutamid, mesotrione, sulcotrione,tefuryltrione, tembotrione, isoxaflutole, isoxachlortole, benzofenap,pyrasulfotole, pyrazolynate, pyrazoxyfen, topramezone, flupoxam,amicarbazone, bencarbazone, flucarbazone, flucarbazone-sodium,ipfencarbazone, propoxycarbazone, propoxycarbazone-sodium,thiencarbazone, thiencarbazone-methyl, cloransulam, cloransulam-methyl,diclosulam, florasulam, flumetsulam, metosulam, penoxsulam, pyroxsulam,imazamethabenz, imazamethabenz-methyl, imazamox, imazamox-ammonium,imazapic, imazapic-ammonium, imazapyr, imazaquin, imazethapyr,clodinafop, clodinafop-propargyl, cyhalofop, cyhalofop-butyl, diclofop,diclofop-methyl, fenoxaprop, fenoxaprop-ethyl, fenoxaprop-P,fenoxaprop-P-ethyl, fluazifop, fluazifop-butyl, fluazifop-P,fluazifop-P-butyl, haloxyfop, haloxyfop-methyl, haloxyfop-P,haloxyfop-P-methyl, metamifop, propaquizafop, quizalofop,quizalofop-ethyl, quizalofop-P, quizalofop-P-ethyl, alloxydim,clethodim, sethoxydim, tepraloxydim, tralkoxydim, pinoxaden,pyroxasulfone, glufosinate, glufosinate-ammonium, glufosinate-P,glufosinate-P-sodium, glufosinate-P-ammonium, bialafos, anilofos,bensulide, butamifos, paraquat, paraquat-dichloride, diquat anddiquat-dibromide.

The application amount of the composition of the present invention canbe changed depending on the mixing ratio of the at least one compoundselected from Group A, and 2,4-D choline salt, weather conditions,formulation types, application time, application methods, applicationplaces, weeds to be controlled and objective crops, however, it isusually 100 to 4000 g based on the total amount of the at least onecompound selected from Group A, and 2,4-D choline salt per hectare.

Also when the composition of the present invention further comprisesglyphosate or a salt thereof, it is usually 100 to 4000 g based on thetotal amount of the at least one compound selected from Group A, 2,4-Dcholine salt and glyphosate or a salt thereof per hectare.

Emulsifiable concentrates, wettable powders, suspensions and the likeare generally diluted with 100 to 2000 liters of water per hectare so asto be the above-described amount of the active ingredients (i.e. the atleast one compound selected from Group A, 2,4-D choline salt andoptionally glyphosate or a salt thereof), and then applied. In addition,when weeds are subjected to foliar treatment with the composition of thepresent invention, an increase of the effect on weeds can be expected byadding an adjuvant to a diluent of the composition of the presentinvention.

In the method for controlling weeds of the present invention, thecomposition of the present invention is applied to weeds or a placewhere weeds are to emerge. The application to weeds may be applicationto weeds per se or application to a soil where weeds have emerged. Theapplication to a place where weeds are to emerge may be application tothe surface of a soil where weeds have not emerged yet.

In the method for controlling weeds of the present invention, the atleast one compound selected from Group A, and 2,4-D choline salt areapplied in an above-described weight ratio.

In the method for controlling weeds of the present invention, when theat least one compound selected from Group A, 2,4-D choline salt andglyphosate or a salt thereof are applied, the at least one compoundselected from Group A, 2,4-D choline salt and glyphosate or a saltthereof are applied in an above-described weight ratio.

Examples of the application method of the composition of the presentinvention include the following embodiments:

a method of applying the composition of the present invention over thesurface of a soil before sowing seeds of crops and before weedemergence;

a method of applying the composition of the present invention over thesurface of a soil before sowing seeds of crops and after weed emergence;

a method of applying the composition of the present invention over weedsbefore sowing seeds of crops and after weed emergence;

a method of applying the composition of the present invention over asurface of the soil after sowing seeds of crops, before emergence of thecrops, and before weed emergence;

a method of applying the composition of the present invention over thesurface of a soil after sowing seeds of crops, before emergence of thecrops, and after weed emergence;

a method of applying the composition of the present invention over weedsafter sowing seeds of crops, before emergence of the crops, and afterweed emergence;

a method of applying the composition of the present invention over thesurface of a soil in the presence of crops, before weed emergence;

a method of applying the composition of the present invention over thesurface of a soil in the presence of crops, after weed emergence; and/or

a method of applying the composition of the present invention over weedsin the presence of crops, after weed emergence.

EXAMPLES

Hereinbelow, the present invention will be described by way of examples,but the present invention is not limited to these examples.

Formulation

Formulation examples are shown below.

Formulation examples are shown below. In the following examples, partsare all parts by weight.

Formulation Example 1

Flumioxazin (0.2 parts), 2,4-D choline salt (4 parts), polyoxyethylenesteryl phenyl ether (14 parts), calcium dodecylbenzenesulfonate (6parts), xylene (30 parts) and N,N-dimethylformamide (45.8 parts) aremixed to obtain an emulsifiable concentrate.

Formulation Example 2

Flumioxazin (1 part), 2,4-D choline salt (2.5 parts), polyoxyethylenesteryl phenyl ether (14 parts), calcium dodecylbenzenesulfonate (6parts), xylene (30 parts) and N,N-dimethylformamide (46.5 parts) aremixed to obtain an emulsifiable concentrate.

Formulation Example 3

Flumioxazin (0.7 parts), 2,4-D choline salt (10 parts), polyoxyethylenesteryl phenyl ether (14 parts), calcium dodecylbenzenesulfonate (6parts), xylene (30 parts) and N,N-dimethylformamide (39.3 parts) aremixed to obtain an emulsifiable concentrate.

Formulation Example 4

Flumioxazin (0.125 parts), 2,4-D choline salt (10 parts),polyoxyethylene steryl phenyl ether (14 parts), calciumdodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (39.875 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 5

Flumioxazin (0.14 parts), 2,4-D choline salt (2 parts), glyphosatepotassium salt (2 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (45.86 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 6

Flumioxazin (0.14 parts), 2,4-D choline salt (2 parts), glyphosateisopropylamine salt (2 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (45.86 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 7

Flumioxazin (0.2 parts), 2,4-D choline salt (4 parts), glyphosatepotassium salt (4 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (41.8 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 8

Flumioxazin (0.2 parts), 2,4-D choline salt (4 parts), glyphosateisopropylamine salt (4 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (41.8 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 9

Flumioxazin (0.2 parts), 2,4-D choline salt (2 parts), glyphosatepotassium salt (4 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (43.8 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 10

Flumioxazin (0.2 parts), 2,4-D choline salt (4 parts), glyphosatepotassium salt (2 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (43.8 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 11

Flumioxazin (0.2 parts), 2,4-D choline salt (2 parts), glyphosateisopropylamine salt (4 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (43.8 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 12

Flumioxazin (0.2 parts), 2,4-D choline salt (4 parts), glyphosateisopropylamine salt (2 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (43.8 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 13

Flumioxazin (0.0625 parts), 2,4-D choline salt (5 parts), glyphosatepotassium salt (5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (39.9375 parts) are mixed to obtain anemulsifiable concentrate.

Formulation Example 14

Flumioxazin (0.0625 parts), 2,4-D choline salt (2.5 parts), glyphosatepotassium salt (5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (42.4375 parts) are mixed to obtain anemulsifiable concentrate.

Formulation Example 15

Flumioxazin (0.0625 parts), 2,4-D choline salt (5 parts), glyphosatepotassium salt (2.5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (42.4375 parts) are mixed to obtain anemulsifiable concentrate.

Formulation Example 16

Flumioxazin (0.0625 parts), 2,4-D choline salt (5 parts), glyphosateisopropylamine salt (5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (39.9375 parts) are mixed to obtain anemulsifiable concentrate.

Formulation Example 17

Flumioxazin (0.0625 parts), 2,4-D choline salt (2.5 parts), glyphosateisopropylamine salt (5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (42.4375 parts) are mixed to obtain anemulsifiable concentrate.

Formulation Example 18

Flumioxazin (0.0625 parts), 2,4-D choline salt (5 parts), glyphosateisopropylamine salt (2.5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (42.4375 parts) are mixed to obtain anemulsifiable concentrate.

Formulation Example 19

Flumioxazin (1 part), 2,4-D choline salt (2.5 parts), glyphosatepotassium salt (2.5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (44 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 20

Flumioxazin (1 part), 2,4-D choline salt (1.25 parts), glyphosatepotassium salt (2.5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (45.25 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 21

Flumioxazin (1 part), 2,4-D choline salt (2.5 parts), glyphosatepotassium salt (1.25 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (45.25 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 22

Flumioxazin (1 part), 2,4-D choline salt (2.5 parts), glyphosateisopropylamine salt (2.5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (44 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 23

Flumioxazin (1 part), 2,4-D choline salt (1.25 parts), glyphosateisopropylamine salt (2.5 parts), polyoxyethylene steryl phenyl ether (14parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts) andN,N-dimethylformamide (45.25 parts) are mixed to obtain an emulsifiableconcentrate.

Formulation Example 24

Flumioxazin (1 part), 2,4-D choline salt (2.5 parts), glyphosateisopropylamine salt (1.25 parts), polyoxyethylene steryl phenyl ether(14 parts), calcium dodecylbenzenesulfonate (6 parts), xylene (30 parts)and N,N-dimethylformamide (45.25 parts) are mixed to obtain anemulsifiable concentrate.

[Herbicidal Effect]

The evaluation of the herbicidal effect is classified into 0 to 100,where the numeral “0” indicates no or little difference in the state ofgermination or growth of test weeds at the time of examination ascomparison with untreated weeds and the numeral “100” indicates thecomplete death of test plants or the complete inhibition of theirgermination or growth.

Example 1

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of flumioxazin and 2,4-D cholinesalt is uniformly sprayed over a surface of the soil on the day of theseeding. After treatment with the agent, the pots are brought into agreenhouse. Fifteen days after treatment with the agent, pots are seededwith soybean, field corn and cotton. As a result, an excellentherbicidal effect is found.

Example 2

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of flumioxazin, 2,4-D cholinesalt and glyphosate-potassium is uniformly sprayed over a surface of thesoil on the day of the seeding. After treatment with the agent, the potsare brought into a greenhouse. Fifteen days after treatment with theagent, pots are seeded with soybean, field corn and cotton. As a result,an excellent herbicidal effect is found.

Example 3

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of flumioxazin, 2,4-D cholinesalt and glyphosate isopropylamine salt is uniformly sprayed over asurface of the soil on the day of the seeding. After treatment with theagent, the pots are brought into a greenhouse. Fifteen days aftertreatment with the agent, pots are seeded with soybean, field corn andcotton. As a result, an excellent herbicidal effect is found.

Example 4

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of flumioxazin, 2,4-D cholinesalt and glyphosate choline salt is uniformly sprayed over a surface ofthe soil on the day of the seeding. After treatment with the agent, thepots are brought into a greenhouse. Fifteen days after treatment withthe agent, pots are seeded with soybean, field corn and cotton. As aresult, an excellent herbicidal effect is found.

Example 5

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of sulfentrazone and 2,4-Dcholine salt is uniformly sprayed over a surface of the soil on the dayof the seeding. After treatment with the agent, the pots are broughtinto a greenhouse. Fifteen days after treatment with the agent, pots areseeded with soybean, field corn and cotton. As a result, an excellentherbicidal effect is found.

Example 6

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of sulfentrazone, 2,4-D cholinesalt and glyphosate-potassium is uniformly sprayed over a surface of thesoil on the day of the seeding. After treatment with the agent, the potsare brought into a greenhouse. Fifteen days after treatment with theagent, pots are seeded with soybean, field corn and cotton. As a result,an excellent herbicidal effect is found.

Example 7

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of sulfentrazone, 2,4-D cholinesalt and glyphosate isopropylamine salt is uniformly sprayed over asurface of the soil on the day of the seeding. After treatment with theagent, the pots are brought into a greenhouse. Fifteen days aftertreatment with the agent, pots are seeded with soybean, field corn andcotton. As a result, an excellent herbicidal effect is found.

Example 8

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of sulfentrazone, 2,4-D cholinesalt and glyphosate choline salt is uniformly sprayed over a surface ofthe soil on the day of the seeding. After treatment with the agent, thepots are brought into a greenhouse. Fifteen days after treatment withthe agent, pots are seeded with soybean, field corn and cotton. As aresult, an excellent herbicidal effect is found.

Example 9

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of saflufenacil and 2,4-Dcholine salt is uniformly sprayed over a surface of the soil on the dayof the seeding. After treatment with the agent, the pots are broughtinto a greenhouse. Fifteen days after treatment with the agent, pots areseeded with soybean, field corn and cotton. As a result, an excellentherbicidal effect is found.

Example 10

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of saflufenacil, 2,4-D cholinesalt and glyphosate-potassium is uniformly sprayed over a surface of thesoil on the day of the seeding. After treatment with the agent, the potsare brought into a greenhouse. Fifteen days after treatment with theagent, pots are seeded with soybean, field corn and cotton. As a result,an excellent herbicidal effect is found.

Example 11

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of saflufenacil, 2,4-D cholinesalt and glyphosate isopropylamine salt is uniformly sprayed over asurface of the soil on the day of the seeding. After treatment with theagent, the pots are brought into a greenhouse. Fifteen days aftertreatment with the agent, pots are seeded with soybean, field corn andcotton. As a result, an excellent herbicidal effect is found.

Example 12

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of saflufenacil, 2,4-D cholinesalt and glyphosate choline salt is uniformly sprayed over a surface ofthe soil on the day of the seeding. After treatment with the agent, thepots are brought into a greenhouse. Fifteen days after treatment withthe agent, pots are seeded with soybean, field corn and cotton. As aresult, an excellent herbicidal effect is found.

Example 13

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of oxyfluorfen and 2,4-D cholinesalt is uniformly sprayed over a surface of the soil on the day of theseeding. After treatment with the agent, the pots are brought into agreenhouse. Fifteen days after treatment with the agent, pots are seededwith soybean, field corn and cotton. As a result, an excellentherbicidal effect is found.

Example 14

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of oxyfluorfen, 2,4-D cholinesalt and glyphosate-potassium is uniformly sprayed over a surface of thesoil on the day of the seeding. After treatment with the agent, the potsare brought into a greenhouse. Fifteen days after treatment with theagent, pots are seeded with soybean, field corn and cotton. As a result,an excellent herbicidal effect is found.

Example 15

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of oxyfluorfen, 2,4-D cholinesalt and glyphosate isopropylamine salt is uniformly sprayed over asurface of the soil on the day of the seeding. After treatment with theagent, the pots are brought into a greenhouse. Fifteen days aftertreatment with the agent, pots are seeded with soybean, field corn andcotton. As a result, an excellent herbicidal effect is found.

Example 16

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of oxyfluorfen, 2,4-D cholinesalt and glyphosate choline salt is uniformly sprayed over a surface ofthe soil on the day of the seeding. After treatment with the agent, thepots are brought into a greenhouse. Fifteen days after treatment withthe agent, pots are seeded with soybean, field corn and cotton. As aresult, an excellent herbicidal effect is found.

Example 17

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of fomesafen-sodium and 2,4-Dcholine salt is uniformly sprayed over a surface of the soil on the dayof the seeding. After treatment with the agent, the pots are broughtinto a greenhouse. Fifteen days after treatment with the agent, pots areseeded with soybean, field corn and cotton. As a result, an excellentherbicidal effect is found.

Example 18

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of fomesafen-sodium, 2,4-Dcholine salt and glyphosate-potassium is uniformly sprayed over asurface of the soil on the day of the seeding. After treatment with theagent, the pots are brought into a greenhouse. Fifteen days aftertreatment with the agent, pots are seeded with soybean, field corn andcotton. As a result, an excellent herbicidal effect is found.

Example 19

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of fomesafen-sodium, 2,4-Dcholine salt and glyphosate isopropylamine salt is uniformly sprayedover a surface of the soil on the day of the seeding. After treatmentwith the agent, the pots are brought into a greenhouse. Fifteen daysafter treatment with the agent, pots are seeded with soybean, field cornand cotton. As a result, an excellent herbicidal effect is found.

Example 20

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of fomesafen-sodium, 2,4-Dcholine salt and glyphosate choline salt is uniformly sprayed over asurface of the soil on the day of the seeding. After treatment with theagent, the pots are brought into a greenhouse. Fifteen days aftertreatment with the agent, pots are seeded with soybean, field corn andcotton. As a result, an excellent herbicidal effect is found.

Example 21

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of Compound 1 and 2,4-D cholinesalt is uniformly sprayed over a surface of the soil on the day of theseeding. After treatment with the agent, the pots are brought into agreenhouse. Fifteen days after treatment with the agent, pots are seededwith soybean, field corn and cotton. As a result, an excellentherbicidal effect is found.

Example 22

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of Compound 1, 2,4-D cholinesalt and glyphosate-potassium is uniformly sprayed over a surface of thesoil on the day of the seeding. After treatment with the agent, the potsare brought into a greenhouse. Fifteen days after treatment with theagent, pots are seeded with soybean, field corn and cotton. As a result,an excellent herbicidal effect is found.

Example 23

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of Compound 1, 2,4-D cholinesalt and glyphosate isopropylamine salt is uniformly sprayed over asurface of the soil on the day of the seeding. After treatment with theagent, the pots are brought into a greenhouse. Fifteen days aftertreatment with the agent, pots are seeded with soybean, field corn andcotton. As a result, an excellent herbicidal effect is found.

Example 24

Plastic pots each filled with soil are seeded with Amaranthusretroflexus, Ipomoea hederacea, Echinochloa crus-galli, and Digitariaciliaris. After seeding, a mixed liquid of Compound 1, 2,4-D cholinesalt and glyphosate choline salt is uniformly sprayed over a surface ofthe soil on the day of the seeding. After treatment with the agent, thepots are brought into a greenhouse. Fifteen days after treatment withthe agent, pots are seeded with soybean, field corn and cotton. As aresult, an excellent herbicidal effect is found.

According to the present invention, it is possible to control weeds in acrop field, a vegetable field, a tree land, a non-cultivated land, orthe like.

What is claimed is:
 1. A herbicidal composition comprising saflufenaciland 2,4-D choline salt, wherein the weight ratio of saflufenacil to2,4-D choline salt is from 1:0.5 to 1:100.
 2. The herbicidal compositionaccording to claim 1, wherein the weight ratio of saflufenacil to 2,4-Dcholine salt is from 1:40 to 1:100.
 3. A method for controlling weeds,comprising applying saflufenacil and 2,4-D choline salt to weeds or soilin a place where the weeds grow or will grow, wherein the weight ratioof saflufenacil to 2,4-D choline salt is from 1:0.5 to 1:100.
 4. Themethod according to claim 3, wherein the weight ratio of saflufenacil to2,4-D choline salt is from 1:40 to 1:100.
 5. The method according toclaim 3, wherein the place where the weeds grow or will grow is asoybean field, a cotton field, or a corn field.
 6. The method accordingto claim 5, wherein a soybean in the soybean field, cotton in the cottonfield or corn in the corn field is a genetically-modified soybean,genetically-modified cotton or genetically-modified corn.
 7. The methodaccording to claim 5, wherein a soybean in the soybean field, cotton inthe cotton field or corn in the corn field is a herbicide-resistantgenetically-modified soybean, herbicide-resistant genetically-modifiedcotton or herbicide-resistant genetically-modified corn.
 8. The methodaccording to claim 5, wherein a soybean in the soybean field or cottonin the cotton field is a 2,4-D-resistant genetically-modified soybean or2,4-D-resistant genetically-modified cotton.